Acid fuchsin dosimeter: a potential dosimeter for food irradiation dosimetry

  • Murtaza SayedEmail author
  • Safia Tabassum
  • Noor S. Shah
  • Javed Ali Khan
  • Luqman Ali Shah
  • Faiza Rehman
  • Sana Ullah Khan
  • Hasan M. KhanEmail author
  • Mohib Ullah
Original Paper


In this study, for the first-time, aqueous solution of Acid Fuchsin (AF) was spectrophotometrically evaluated as a possible chemical dosimeter for food irradiation dosimetry at low dose ranges. A 50 µM solution of AF at natural pH was gamma irradiated and absorbance of the solution was measured at λmax (i.e., 543 nm) in addition to other wavelengths (490, 510, 549 and 564 nm). The response of AF dosimeter was investigated by plotting various variables, i.e., absorbance (A), − log A, change in absorbance (∆A), log Ao/Ai and absorbance % (A %) against absorbed dose. The response plots suggested that the beneficial dose range of AF solution in water was up to 0.82 kGy when absorbance (A), change in absorbance (ΔA) and absorbance % (A %) were extrapolated against absorbed dose. Though, the response was linear and beneficial absorbed dose range was extended up to 1.65 kGy, when − log A and log Ao/Ai were plotted against absorbed dose. It was concluded from pre- and post-irradiation stability studies of AF dosimeter that it should be protected from light and heat during handling and storage. For detection of the reactive specie involved in the bleaching of AF dye the AF dye solution was saturated with O2, N2 and N2O gases.


Acid fuchsin Chemical dosimeter Dosimetry Food irradiation UV–Vis spectrophotometry 



The authors highly acknowledge the gamma irradiation facilities provided by Nuclear Institute for Food and Agriculture (NIFA), Tarnab, Peshawar, the research facilities provided by University of Peshawar and to the Higher Education Commission (HEC), Islamabad for providing fellowship grant to HMK and Ph.D. research fellowship to ST.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Radiation and Environmental Chemistry Laboratory, National Centre of Excellence in Physical ChemistryUniversity of PeshawarPeshawarPakistan
  2. 2.Department of Environmental ScienceCOMSATS University IslamabadIslamabadPakistan
  3. 3.Department of ChemistryThe University of Poonch RawalakotRawalakotPakistan
  4. 4.Department of ChemistryWomen University SwabiSwabiPakistan
  5. 5.Institute of ChemistryGomal UniversityD.I. KhanPakistan

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